ΔE 15.2, loose: different enough that you should pick on purpose. Ice Yellow is a little darker, much more saturated, warmer than Linen White.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 15). Ice Yellow is a little darker, much more saturated, warmer than Linen White.
The same difference applies the other way round: Linen White is a little lighter, much more muted, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Linen White on the colour wheel See Ice Yellow on the colour wheel
All matches: Linen White equivalents · Ice Yellow equivalents